If 'All men are mortal' is true, what can be inferred about the truth or falsehood of the following propositions?
1. Some non-mortals are not non-men.
2. No non-men are non-mortal.
3. Some non-mortal are men.
Out of these statements

A. Proposition B. Statement C. Argument D. Explanation

A. Excellence of some members of a class B. Exclusion of some members of a class C. Exclusion of many members D. Inclusion of many members

A. Some scientists are not mathematicians B. No scientists are mathematicians C. All scientists are mathematicians D. None of the above

A. 1 and 3 B. 1 and 2 C. 2 and 3 D. 1 and 4